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Returns all system properties

The return value is a java.util.Properties object. The Properties class is a subclass of java.util.Hashtable public class MainClass {   public static void main(String[] args) {     java.util.Properties properties = System.getProperties();     properties.list(System.out);   } } -- listing properties -- java.runtime.name=Java(TM) 2 Runtime Environment, Stand... sun.boot.library.path=C:\Java_Dev\sdk\jdk\jre\bin java.vm.version=1.5.0-b64 ...